package com.spzx.product.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

@Configuration
public class ThreadPoolConfig {
    @Bean
    public ThreadPoolExecutor threadPoolExecutor(){
        ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor(
                Runtime.getRuntime().availableProcessors(),
                Runtime.getRuntime().availableProcessors(),
                0,
                TimeUnit.SECONDS,
                new ArrayBlockingQueue<>(300),
                Executors.defaultThreadFactory(),
                new ThreadPoolExecutor.CallerRunsPolicy()
        );
        //默认首次创建任务时提交
        threadPoolExecutor.prestartCoreThread();
        return threadPoolExecutor;
    }
}
